Question 832627
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Hi, there--

THE PROBLEM:
What is the value of f(-9) when f(x)=2x to the power of 2 +3x-4

A SOLUTION:
You have the function
{{{f(x)=2x^2+3x-4}}}

To find f(-9) substitute -9 for x in the function.
{{{f(-9)=2(-9)^2+3(-9)-4}}}

Now simplify the right-hand side.
{{{f(-9)=2(81)-27-4}}}
{{{f(-9)=131}}}

That's all there is to it.



Hope this helps! Feel free to email if you have any questions about the solution.

Good luck with your math,

Mrs. F
math.in.the.vortex@gmail.com
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